File: [local] / sys / arch / mvme88k / dev / syscon.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:04:37 2008 UTC (16 years, 5 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: syscon.c,v 1.27 2006/11/18 12:04:57 miod Exp $ */
/*
* Copyright (c) 1999 Steve Murphree, Jr.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* VME188 SYSCON
*/
#include <sys/param.h>
#include <sys/conf.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <machine/mvme188.h>
#include <mvme88k/dev/sysconreg.h>
struct sysconsoftc {
struct device sc_dev;
struct intrhand sc_abih; /* `abort' switch */
struct intrhand sc_acih; /* `ac fail' */
struct intrhand sc_sfih; /* `sys fail' */
#if 0
struct intrhand sc_m188ih; /* `m188 interrupt' */
#endif
};
void sysconattach(struct device *, struct device *, void *);
int sysconmatch(struct device *, void *, void *);
int syscon_print(void *, const char *);
int syscon_scan(struct device *, void *, void *);
int sysconabort(void *);
int sysconacfail(void *);
int sysconsysfail(void *);
int sysconm188(void *);
struct cfattach syscon_ca = {
sizeof(struct sysconsoftc), sysconmatch, sysconattach
};
struct cfdriver syscon_cd = {
NULL, "syscon", DV_DULL
};
int
sysconmatch(parent, vcf, args)
struct device *parent;
void *vcf, *args;
{
/* Don't match if wrong cpu */
if (brdtyp != BRD_188)
return (0);
return (1);
}
int
syscon_print(args, bus)
void *args;
const char *bus;
{
struct confargs *ca = args;
if (ca->ca_offset != -1)
printf(" offset 0x%x", ca->ca_offset);
if (ca->ca_ipl > 0)
printf(" ipl %d", ca->ca_ipl);
return (UNCONF);
}
int
syscon_scan(parent, child, args)
struct device *parent;
void *child, *args;
{
struct cfdata *cf = child;
struct confargs oca, *ca = args;
bzero(&oca, sizeof oca);
oca.ca_iot = ca->ca_iot;
oca.ca_dmat = ca->ca_dmat;
oca.ca_offset = cf->cf_loc[0];
oca.ca_ipl = cf->cf_loc[1];
if (oca.ca_offset != -1) {
oca.ca_paddr = ca->ca_paddr + oca.ca_offset;
} else {
oca.ca_paddr = -1;
}
oca.ca_bustype = BUS_SYSCON;
oca.ca_name = cf->cf_driver->cd_name;
if ((*cf->cf_attach->ca_match)(parent, cf, &oca) == 0)
return (0);
config_attach(parent, cf, &oca, syscon_print);
return (1);
}
void
sysconattach(parent, self, args)
struct device *parent, *self;
void *args;
{
struct sysconsoftc *sc = (struct sysconsoftc *)self;
printf("\n");
/*
* Clear SYSFAIL if lit.
*/
*(volatile u_int32_t *)MVME188_UCSR |= UCSR_DRVSFBIT;
/*
* pseudo driver, abort interrupt handler
*/
sc->sc_abih.ih_fn = sysconabort;
sc->sc_abih.ih_arg = 0;
sc->sc_abih.ih_wantframe = 1;
sc->sc_abih.ih_ipl = IPL_ABORT;
sc->sc_acih.ih_fn = sysconacfail;
sc->sc_acih.ih_arg = 0;
sc->sc_acih.ih_wantframe = 1;
sc->sc_acih.ih_ipl = IPL_ABORT;
sc->sc_sfih.ih_fn = sysconsysfail;
sc->sc_sfih.ih_arg = 0;
sc->sc_sfih.ih_wantframe = 1;
sc->sc_sfih.ih_ipl = IPL_ABORT;
#if 0
sc->sc_m188ih.ih_fn = sysconm188;
sc->sc_m188ih.ih_arg = 0;
sc->sc_m188ih.ih_wantframe = 1;
sc->sc_m188ih.ih_ipl = IPL_ABORT;
#endif
sysconintr_establish(SYSCV_ABRT, &sc->sc_abih, "abort");
sysconintr_establish(SYSCV_ACF, &sc->sc_acih, "acfail");
sysconintr_establish(SYSCV_SYSF, &sc->sc_sfih, "sysfail");
#if 0
intr_establish(M188_IVEC, &sc->sc_m188ih, self->dv_xname);
#endif
config_search(syscon_scan, self, args);
}
int
sysconintr_establish(int vec, struct intrhand *ih, const char *name)
{
#ifdef DIAGNOSTIC
if (vec < 0 || vec >= SYSCON_NVEC)
panic("sysconintr_establish: illegal vector 0x%x", vec);
#endif
return intr_establish(SYSCON_VECT + vec, ih, name);
}
int
sysconabort(eframe)
void *eframe;
{
*(volatile u_int32_t *)MVME188_CLRINT = ISTATE_ABORT;
nmihand(eframe);
return (1);
}
int
sysconsysfail(eframe)
void *eframe;
{
*(volatile u_int32_t *)MVME188_CLRINT = ISTATE_SYSFAIL;
printf("WARNING: SYSFAIL* ASSERTED\n");
return (1);
}
int
sysconacfail(eframe)
void *eframe;
{
*(volatile u_int32_t *)MVME188_CLRINT = ISTATE_ACFAIL;
printf("WARNING: ACFAIL* ASSERTED\n");
return (1);
}
#if 0
int
sysconm188(eframe)
void *eframe;
{
/* shouldn't happen! */
printf("MVME188: self-inflicted interrupt\n");
return (1);
}
#endif